Name a non-reducing sugar and outline a test which can identify its presence. (6)

Sucrose (1)Rule out reducing sugars - heat in a water bath. Add Benedict's solution. Should remain blue. (1)Add dilute HCl to a new sample and heat in a water bath (1)Neutralise with NaHCO3 (1)Add Benedict's reagent (1)If positive, a brick red precipitate is formed (1)

AR

Related Biology A Level answers

All answers ▸

Describe and explain the effect of an increase in muscular activity on the heart rate.


What is atherosclerosis and how does it occur?


Describe the cardiac cycle


What is meant by the phrase saltatory conduction?